Selective information dissemination in P2P networks

Abstract

We study the problem of selective dissemination of information in P2P networks. We present our work on data models and laiguages for textual information dissemination and discuss a relemnt P2P architecture that motivates our efforts. We also survey our results on the computational complexity of three related algorithmic problems (query satisfiability, entailment and filtering) and present efficient algorithms for the most crucial of these problems (filtering). Finally, we discuss the features of P2P-DIET, a super-peer system we have implemented at the Technical Lniversity of Crete, that realizes our vision and is able to support both ad-hoc querying and selective information dissemination scenarios in a P2P framework.

Selective Propagation of Social Data in Decentralized Online Social Network

“…peers that store these resources). In contrast to this process of searching, [13] discuss "selective information push" where user posts her profile to "super-peers" and receives notifications about resources that match her interests as these resources become available. Since the user is both consumer and producer of the resources shared in the network, she can also post advertisements of her resources and the super-peer will push notifications about these resources to relevant peers (peers with matching interests).…”

Self-organising Applications Using Lightweight Agents

“…Groups of agents can interact into persistent communities that arise from the interactions between the agents rather than from some central, and so are self-organised. The two examples here deal with information sharing in two different application contexts: self-organising communities [42] and P2P-DIET [22].…”

“…The DIET platform has also been used to implement the extensible P2P service P2P-DIET [19,20,22,34]. P2P-DIET is a super-peer system and has two kinds of nodes: super-peers and clients (see Fig.…”

“…In the current demo of the system publications and subscriptions are expressed using a well-understood attribute-value model called AWPS in [22]. AWPS is based on named attributes with value text interpreted under the Boolean and VSM or LSI models.…”

Query Processing in Super-Peer Networks with Languages Based on Information Retrieval: The P2P-DIET Approach

“…In an SDI scenario, a user posts a continuous query or profile to the system to receive notifications whenever certain resources of interest are published. Our work has culminated in the implementation of P2P-DIET [9,11], a service that unifies one-time and continuous query processing in P2P networks with super-peers.…”